usb: start using the control module driver

Start using the control module driver for powering on the PHY and for
writing to the mailbox instead of writing to the control module
registers on their own.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

Documentation/devicetree/bindings/usb/omap-usb.txt

@@ -3,6 +3,9 @@ OMAP GLUE AND OTHER OMAP SPECIFIC COMPONENTS
 OMAP MUSB GLUE
  - compatible : Should be "ti,omap4-musb" or "ti,omap3-musb"
  - ti,hwmods : must be "usb_otg_hs"
+ - ti,has-mailbox : to specify that omap uses an external mailbox
+   (in control module) to communicate with the musb core during device connect
+   and disconnect.
  - multipoint : Should be "1" indicating the musb controller supports
    multipoint. This is a MUSB configuration-specific setting.
  - num_eps : Specifies the number of endpoints. This is also a
@@ -24,6 +27,7 @@ SOC specific device node entry
 usb_otg_hs: usb_otg_hs@4a0ab000 {
 	compatible = "ti,omap4-musb";
 	ti,hwmods = "usb_otg_hs";
+	ti,has-mailbox;
 	multipoint = <1>;
 	num_eps = <16>;
 	ram_bits = <12>;

Documentation/devicetree/bindings/usb/usb-phy.txt

@@ -4,9 +4,7 @@ OMAP USB2 PHY
 
 Required properties:
  - compatible: Should be "ti,omap-usb2"
- - reg : Address and length of the register set for the device. Also
-add the address of control module dev conf register until a driver for
-control module is added
+ - reg : Address and length of the register set for the device.
 
 Optional properties:
  - ctrl-module : phandle of the control module used by PHY driver to power on
@@ -16,7 +14,6 @@ This is usually a subnode of ocp2scp to which it is connected.
 
 usb2phy@4a0ad080 {
 	compatible = "ti,omap-usb2";
-	reg = <0x4a0ad080 0x58>,
-	      <0x4a002300 0x4>;
+	reg = <0x4a0ad080 0x58>;
 	ctrl-module = <&omap_control_usb>;
 };